.App {
  display: flex;
  justify-content: center;
  padding-top: 50px;
}
.box{
  width: 270px;
  height: 270px;
  border: solid 2px;
  /* margin: 50px auto; */
  display: flex;
  justify-content: flex-start;
  flex-flow: wrap row;
  margin-right: 15px;
}
.box div{
  width: 90px;
  height: 90px;
  box-sizing: border-box;
  border: solid 1px;
  text-align: center;
  font-size: 60px;
  line-height: 90px;
  cursor: pointer;
}
.color{
  color: red;
}

.btnList{
  width: 150px;
  height: 500px;
  display: flex;
  /* justify-content: center; */
  flex-direction: column;
  text-align: center;
}

.btnList button {
  margin-top: 5px;
}